Carl Sagan's Cosmos Episode 6 Travelers Tale Part 4

[RJL738]

The amazing thing is Europa has more than twice the amount of liquide water as all the water on Earth, Saturn has a large ring that is the volume of more than a billion Earths and it is possible that given some ratios that planets may outnumber stars by several hundred times. If there are as much as 3 planets in the habitable zone of a star only 20 lightyears away ( Gliese 581 ) then what does this say about a universe that may be many tetrations wider than the known universe.

[speaktruthiness]

i wish more people watched these

[theappropriation]

@speaktruthiness just gota tell them about this series. I think alot of people would find it interesting.